Supplemental Adjusted Second PEO Actually Paid Compensation Amount Supplemental Adjustment, Equity Awards In Prior Years [Member] Second PEO Salary PEO Other Compensation Second PEO Other Compensation Supplemental Adjustment, Equity Awards Prorated During The Year [Member] Supplemental Adjustment, Other Adjustments [Member] Adjustment To Compensation Amount, Equity Awards Adjustment, Additions [Member] Supplemental Adjustment, Other Adjustment, BV Shares [Member] Supplemental Adjustment, Equity Awards Granted During the Year, Unvested, MV Shares [Member] PEO Bonus And Non-Equity Incentive Compensation Supplemental Adjustment, Equity Awards Granted During the Year, Unvested, BV Shares [Member] Supplemental Adjustment, Other Adjustment, MV Shares [Member] Supplemental Adjusted Non-PEO NEO Average Compensation Actually Paid Amount Supplemental Adjusted PEO Actually Paid Compensation Amount Equity Awards Reported Value, MV Shares [Member] Equity Awards Granted in Prior Years, Vested [Member] Equity Awards Reported Value [Member] Second PEO [Member] Adjustment to Compensation Amount for Second PEO Non-PEO NEO Salary Second PEO Bonus And Non-Equity Incentive Compensation Equity Awards Granted in Prior Years, Unvested [Member] Equity Awards Granted in Prior Years, Unvested, MV Shares [Member] Net Income (Loss) Available to Common Stockholders, Basic Equity Awards Granted in Prior Years, Unvested, BV Shares [Member] Supplemental Adjustment, Cash Awards Reclassified During The Year [Member] Second PEO Total Compensation Amount Equity Awards Granted in Prior Years, Vested, BV Shares [Member] Non-PEO NEO Other Compensation Non-PEO NEO Bonus And Non-Equity Incentive Compensation Supplemental Adjustment, Equity Awards During The Year [Member] Second PEO Name Equity Awards Granted in Prior Years, Vested, MV Shares [Member] Supplemental Adjustment, Equity Awards Granted During the Year, Unvested [Member] Adjustment, Equity Award Adjustments [Member] Adjustment, Equity Award Adjustments, BV Shares [Member] Equity Awards Reported Value, BV Shares [Member] Adjustment, Equity Award Adjustments, MV Shares [Member] Adjustment, Deductions [Member] PEO Salary Second PEO Actually Paid Compensation Amount